Dow Plunges 326 Points

On Monday, weaker than expected factory data and continued concerns over emerging markets sent the Dow Jones Industrial Average nosediving 326 points to shave 2.08 percent off the Dow as the S&P 500 posted its worst loss (40.7 points) since June.

Some blamed bad weather. Others, like Morgan Stanley’s Ted Wieseman, were unconvinced. “It’s hard to believe that weather was the whole or even most of the story, but it’s not clear what else triggered the suddenly much slower growth these results point to,” said Wieseman.

“There has been a discernible change in behavior in the market from last year,” Cuttone & Co. senior vice president Keith Bliss told theWall Street Journal. “You didn’t have to be real smart in 2013 to make money. You just didn’t want to get in the way of the Federal Reserve. The behavior change now is people are absolutely paying attention to fundamentals,” said Bliss.